Gilling machine and drawing machine for the treatment of fibrous materials



Mam; 2, 1937. H HE 2,072,453

GILLING MACHINE AND DRAWING MACHINE FOR THE TREATMENT OF FIBROUS MATERIALS Original Filed July 28, 1934 'F/& 4. v-

A ,F'W Wad/INN Patented Mar. 2, 1937 UNITED STATES .GILLI' Gf MACHINE AND DRAWING MACHINE FOR/THE TREATMENT OF FIBROUS MA- TERIALS John Hughes, Rochdale, England Original application July 28, 1934, Serial No.

Divided and this application May 7,

1936, Serial No. 78,321. In Great Britain July 29, 1933 4 Claims.

This invention relates to gilling machines, worsted draw frames and like machines for preparing fibrous material for spinning or other treatment or use, as disclosed in the specification 5 of my, -co-pending1.patent application Serial No. 737,357 filed July 28, 1934, of which the present application is a division;

The invention aims to provide a clamping device advantageous, in comparison with clamping devices for analogous purposes hitherto provided in gilling machines, worsted draw frames and like machines, in simplicity and convenience of use and in making it easy to ensure that the upper part of a head shall be held accurately and firmly in position in relation to the lower part and alsoeasy to unfasten and to swing up the upper part of the head relatively to the lower part with which it is connected by a hinge-like connection.

The invention further aims to provide a clampmg device contrived to serve also as a prop for use in holding up the upper part of the head of a machine to which it is applied.

Other objects and features of the invention are set forth in the following description and appended claims.

In the accompanying drawing, Fig. l is a partial side elevation of part of a head of a gilling machine, worsted draw frame or like machine and of a clamping device used with said head. Fig. 2

is a partial rear elevation of the head and clamping device shown in Fig. 1, and Fig. 3 is a side elevation of the parts shown in Fig. 1 but with the head and clamping device shown broken and in a different position. Fig. 4 is a side elevation of a modified clamping device.

Like reference numerals indicate corresponding parts in the several views.

Referring to Figs. 1 to 3, the clamping device illustrated, for use in holding down the upper part of a head in an intersecting gill box with upper and lower sets of fallers or in a gill box with a single set of fallers or in a worsted draw frame or like machine, comprises an arm or lever 21, shown as a hand lever, which is connected by a pivot 28 to one part 29 of a head 30 of a machine, to which it is applied, and which is formed with a cam slot 3| for engagement with a stud or projection 32 constituting a cam-follower on the other part 33 of the head 30. As will be understood, when the lever 21 is moved into the position shown in Figs. 1 and 2, the upper part 33 of the head is firmly pressed down upon and in position relatively to the lower part 29; when the 55 lever 21 is moved into the position shown in Fig.

3, the upper part 33 of the head 30 may be swung upward relatively to the lower part 29.

In order that the lever 21 may exercise a cam action on the stud 32, the slot 3| is formed of a curvature increasing in radius from the center- 5 line ofthepivot 28 in the directionindicated by the arrow A, and, in order to allow the part 33 of the head 30 to be raised, the slot 3| is made with a radial extension 34 allowing upward movement of the stud 32. 10

The description so far given of the lever 27 applies to the lever 35 shown in Fig. 4, which, however, is of opposite hand, for application at the other side of the head of a machine, to the lever 27 shown in Figs. 1, 2, and 3, and is formed 15 with an orificed boss 36 for mounting upon a pivot, and with a cam slot 31 to receive a stud or projection corresponding to the stud or projection 32, the slot being in part made to increase in radius from the center-line of the orifice in one direction and communicating with a substantially radial extension 38.

In order that it may serve as a prop, the arm or lever 21 is formed with a notch 39 extending laterally from the radial extension 34 of the slot 3| and presenting a detent 4| at the side nearer the center-line of the pivot 28. The detent 4| is adapted to be engaged with the stud 32 when the upper part 33 of the head 33 has been raised from the lower part 29, the notch being so inclined that the stud 32 is held in engagement with it under the influence of the weight of the raised part 33 of the head 33.

Two clamping levers formed with cam slots as aforesaid may be provided for use with and one at each side of a head of a machine, one such lever being contrived for use in holding down the upper part of the head and being movable to allow the upper part of the head to be raised, while the other clamping lever is contrived for use in holding down the upper part of the head and is movable to allow the upper part of the head to be raised and is also contrived to serve for holding up the upper part of the head.

In the form illustrated in Fig. 4 the arm or 45 lever 35 and its handle are formed and disposed so that their weight exercises a downward infiuence on the arm 35 at one side of the centerline of the pivot when the clamping device is in use for holding down the upper part of the head and at the other side of said center-line when the clamping device is moved into position to allow the upper part of the head to be raised.

What I claim is:-

1. A clamping device for holding down the upper part of a head of a gilling machine, or like machine, upon the lower part of the head, comprising a lever pivoted to one of said parts and formed with a cam slot, and a cam follower on the other of said parts engaging said cam slot, said lever also formed with a slot substantially radial to the pivot of said lever and forming an extension of said cam slot, said extension slot engageable by said follower when said upper part is swung upwardly from said lower part.

2. A clamping device for holding down the upper part of ahead of a gilling machine, or like machine, upon the lower part of said head, comprising a lever pivoted to one of said parts and formed with a cam slot, and a cam follower on the other of said parts engaging said slot, said lever formed with a slot substantially radial to the pivot of said lever and in communication with said cam slot, and formed additionally with a notch extending laterally from said substantially radial slot, for engagement by said follower to support said lever when acting as a prop to hold the upper part of said head lifted from said lower part.

3. Clamping means for holding down the upper part of a head of a gilling or like machine upon the lower part, comprising two levers each pivoted to the lower part and each formed with a cam slot, cam followers on said upper part, each of said followers engageable with the slot in one of said levers, each of said levers when swung in one direction on its pivot operating: to press said upper part down on said lower part, and one of said levers adapted to function as a prop to hold said upper part in position when raised from said lower part.

4. A clamping device for holding down the upper part of a head of a gilling machine or like machine, upon the lower part of said head, comprising a lever formed with a handle and pivoted upon one of said parts and formed with a slot bounded in part by a cam edge, in part by an edge substantially radial to the pivot of said lever, and in part by one wall of a lateral notch with a detent at the junction of said notch and said substantially radial edge, and a cam i'ollower on the other part of said head and engaging said slot.

JOHN HUGHES. 

